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Two green circuit boards with black chips, 260-pin SODIMM form factor, no heat spreader

A-Tech

A-Tech 32GB (2x16GB) DDR4 2133MHz SODIMM 260-Pin Memory Upgrade for Apple iMac 21.5-inch Mid 2017

SKU CH-486V-6QQ5E

32 GB kit of two 16 GB DDR4 2133 MHz SO-DIMM modules for the 21.5-inch iMac (Mid 2017)

  • Capacity32GB (2 x 16GB)
  • SpeedDDR4 2133 (PC4 17000)
  • Voltage1.20V
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • Rank2Rx8
  • 32 GB capacity with two 16 GB modules
  • DDR4 2133 MHz speed for faster loading
  • 260-pin SO-DIMM fits iMac 21.5-inch Mid 2017
  • 20 V low voltage reduces power draw
  • Non-ECC unbuffered design ensures stable operation

Compatible iMac Model

This 32GB kit uses two 16GB DDR4 2133MHz SODIMM modules built for the 21.5-inch iMac from Mid 2017. It matches Apple order number MMQA2LL/A and model identifier iMac18,1. The 260-pin unbuffered design installs directly into the factory memory slots.

Who It Suits

Owners of the specified 21.5-inch Mid 2017 iMac who need the maximum 32GB capacity for heavier multitasking or memory-intensive applications. It is not for any other iMac size, any other year, or any system that requires ECC or registered memory.

Deciding Specification

The kit is validated for Apple model A1418 (EMC 3068) running DDR4 at 2133MHz (PC4-17000) with a 2Rx8 rank configuration. If your iMac carries a different model ID or requires a different speed, voltage or rank, this memory will not be compatible.

商品特色

  • 32 GB capacity with two 16 GB modules
  • DDR4 2133 MHz speed for faster loading
  • 260-pin SO-DIMM fits iMac 21.5-inch Mid 2017
  • 20 V low voltage reduces power draw
  • Non-ECC unbuffered design ensures stable operation

商品規格

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity32GB (2 x 16GB)
SpeedDDR4 2133 (PC4 17000)
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

商品問答

How can I confirm the 32 GB kit is recognised at 2133 MHz after installing it in my 21.5-inch iMac from 2017?

Open About This Mac and check the Memory tab — it should show 32 GB (2 x 16 GB) of DDR4 running at 2133 MHz.

What comes in the box and do I need any extra tools or modules for the upgrade?

The package contains two 16 GB DDR4 260-pin SODIMM modules; no additional parts or tools are required for installation.

Which capacity should I choose between the 32 GB kit and a smaller option for my iMac18,1?

The 32 GB (2 x 16 GB) kit matches the maximum supported memory for the iMac18,1 and fills both slots for optimal dual-channel performance.

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